We recommend issuing an annual report on “Global Risk”, which would become a flagship product of G20 with support from T20. By ranking the top global risks in the report, G20 could help improve the efficiency of the distribution and use of resources, namely global public goods. The report could enhance G20’s enforcement power by setting up a precautionary mechanism in the form of a specific task force or panel discussion of a related international organisation, such as the WHO, WTO or UNIDO. G20 could delegate the task of report drafting to T20, since T20 could call for think-tankers from various research backgrounds across the globe to identify global risks and explore global solutions. The annual report on “Global Risk” could contribute to T20 reform, because this joint work on an annual basis could give more consistency to T20’s work and strengthen communication between think-tanks.